Home / 538,278,088.76-742,824,087.91-290,759,552.36

Finding the Fourth Proportional to 538,278,088.76, 742,824,087.91 and 290,759,552.36

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Solution

The fourth proportional to 538,278,088.76, 742,824,087.91 and 290,759,552.36 is: 401,248,358.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,278,088.76 : 742,824,087.91 = 290,759,552.36 : x
  2. Step 2: Convert to fraction form
    538,278,088.76/742,824,087.91 = 290,759,552.36/x
  3. Step 3: Cross multiply
    538,278,088.76x = 742,824,087.91 × 290,759,552.36
  4. Step 4: Simplify right side
    538,278,088.76x = 215,983,199,278,495,904
  5. Step 5: Solve for x
    x = 215,983,199,278,495,904/538,278,088.76
  6. Step 6: Final answer
    x = 401,248,358.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.